#121B21
Dark Blue
HEX
RGB
HSL
About #121B21 Dark Blue
#121B21 is a dark blue color. In the RGB color model, it is composed of 18 red, 27 green, and 33 blue. In the HSL color space, it has a hue of 204°, saturation of 29%, and lightness of 10%.
This color has a low lightness value, making it a dark color great for text and bold accents. With low saturation, it appears muted and subtle.
CSS Code
Use #121B21 in your CSS, SCSS, or Tailwind projects.
Color Properties
204°
Hue
29%
Saturation
10%
Lightness
Dark Blue
Color Harmonies
Colors that work well with #121B21 based on color theory.
Accessibility
WCAG 2.1 contrast ratio of #121B21 against white and black backgrounds.
Aa#121B21 on White
Contrast Ratio17.44:1
AA ✓AA Large ✓AAA ✓
Aa#121B21 on Black
Contrast Ratio1.2:1
AA ✗AA Large ✗AAA ✗
Color Conversion Table
Complete conversion of #121B21 across different color formats.
| Format | Value |
|---|---|
| HEX | #121B21 |
| RGB | rgb(18, 27, 33) |
| HSL | hsl(204, 29%, 10%) |
| RGB Decimal | 18, 27, 33 |
| RGB Percent | 7.1%, 10.6%, 12.9% |
| CMYK (approx.) | 45%, 18%, 0%, 87% |
Related Palettes
12 palettes using #121B21 or similar colors